Improvement in apparatus for warming railway-carriages



F.- GRA'NDJEAN & J.B.D.'cAssINELL1.

APPARATUS FOR WARNING RAILWAY CARRIA'GES, &C. No. 180,022. Patente-a 'my 1 8, 187e.

N. PETERSv PHOTO-LITHOGRAPHER, WASHINGTON, D. C4

UNITED EEroE.

PIERRE .'eEANDJEAN AND JEAN B. D. cAssINELLI, OE PAEIsERANGE.

i IMPROVEMENT IN APPARATUS FOR WARNUNG RAlLWAV-CARRIAGES, &c.

Specification forming part of Letters Patent No. 180,022, dated July 18, 1876; application tiled June 2:2, 1876.

To ali whom it may concern:

Be it known that we, PIERRE GRANDJEAN and J EAN B. D. CAssiNELLI, of Paris, France, have invented a new and Improved Appara tus for Heating Railroad-Cars and other purposes, which invention is fully set forth i'u the following specification, reference being had to the accompanying drawing, in which- Figure l represents a longitudinal vertical section of our apparatus. Fig. 2 is a vertical cross-'section ofthe same.

Similar letters indicate corresponding pa-rts.

This invention relates to an aiiiparatus especially adapted to heating railroad-cars, but which may also be used as a footfwarmer, and for other like purposes.

lt 'consists in a casing which is divided into two chambers, situated one over the other, the lower one of which chambers contains a re-box, and is provided with an orifice at one or both its ends, for the admission of atmospheric air, whie the upper chamber communicates with the lower chamber, and also is provided with an orifice at one` or both its ends for the escape of the air which is admitted to the lower chamber, and which air is heated in its passage through the said lower chamber when a fire is built in the fire-box. The tire-box is provided with holesin its sides for the admission ofair to support combustion therein,- and the bottom of the box' is covered with a wirework mat, so that the box is adapted to the burning of artificial fuel, as will be hereinafter set forth.

In the drawing, the letter A designates a casing, which is divided by a horizontal partition, B, into an upper chamber, C, and a lower chamber, D, the partition B being provided with an opening, c, through vwhich the chambers C D communicate with each other. Beneath the opening a is suspended a plate, E, whose object will be hereinafter described. Fis the tire-box, which, inthe example shown, has a rectangular shape. On the bottom of this box is placed a mat, G, made of wire gauze, and in its sides are formed holes b, for the circulation ot' air in and around the box. On the upper edges of the fire-box F are formed notches c. The tire-box is situated in the lower chamber D, and it is preferably made removable, to which end a suitable opening is formed in the front end of the said lower chamber D, for the insertion andremoval of the box, the latter being moreover provided with a knob, d, for handling it. A plate, H, is affixed to the bottom of the said lower chamber D, for supporting the fire-box F, the longitudinal edges of such plate being bent up to forni anges e, (see Flo'. 2,) which serve to guide the box when it is slid in and out of the chamber.

When the re-box F is made removable I combine therewith a spring-catch,j, which is so arranged as to engage the box after it is shoved into place. With the box is combined also a spring, h, to prevent rattling or shaking thereof, particularly when our apparatus is used in railway-carriages, such spring be.- ing fastened to the horizontal partition B, and bearing on the Lipper edge of the box. In the rear end of the lower chamber D, and in the front end ofthe fire-box F, are formed orifices f, for the admission of atmospheric air, a de in its sides, andif a lire is made in this box the combustion is facilitated therein while the air becomes heated. The air thence passes into the upper chamber C by the opening a, in the partition B, being made to describe a circuitous course by the plate E, whence it escapes from the upper chamber through the orifices i.

In order to heat our apparatus we prefer to make use of anv artificial fuel, composed of pulverized tan or bark of trees, charcoal-dust, nitrate of lead, and starch, or any equivalent materials, which forms the subject of another application for Letters Patent by us, a-nd which has the great advantage, that it pro- 2. The fire-box F, having holes bin its sides, dnees neither smoke or any perceptible order, and provided with a'Wire-lnat, G, substanwhile it is exceedingly durable. tially as und for thepurpose described.

Whatwe claim as new, and desire to secure by Letters Patent, is- P. GRANDJEAN.

1. The combination, in an apparatus for J. B. 1). GASSINELLI.

heating, of the upper chamber C, and lower chamber D, each provided with oricesf i at fitnessesz one or both ends thereof, with the rebox F, E. BONNEVILLE, the whole constructed and adapted to operate W. H. DAUBRAY. substantially as described. 

